Key result
Emergency intravascular ultrasound successfully located a fluoroscopically invisible stent during primary angioplasty, guiding subsequent balloon positioning and correct stent deployment.
Case Report (n=1)
Emergency IVUS can be a valuable tool for locating stents that cannot be visualized fluoroscopically during primary angioplasty.
Does not support routine IVUS adoption; hypothesis-generating for managing fluoroscopically invisible stents in primary angioplasty.
A 62-year-old man underwent primary PTCA with bail-out stent placement for an acute anterior wall myocardial infarction. After initial deployment of one half of a Palmaz-Schatz stent, the stent could not be visualized fluoroscopically. Emergency intravascular ultrasound (IVUS) showed the stent to be located proximal to the intended site of deployment. This finding helped determine balloon positioning for subsequent high-pressure inflations and also led to deployment of another half stent in the correct site. This case demonstrates that availability of and familiarity with IVUS can benefit interventional cardiologists and their patients in unexpected circumstances.
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Fugit et al. (1998) conducted a case report in Acute anterior wall myocardial infarction (n=1). Emergency intravascular ultrasound (IVUS) was evaluated. Emergency intravascular ultrasound successfully located a fluoroscopically invisible stent during primary angioplasty, guiding subsequent balloon positioning and correct stent deployment.
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